Assertion (A) : In the daytime, CO2 generated during respiration
Reason (R) : There is no CO2 release during day
The diagram shows part of the human gas exchange system.
Assertion : Larynx passes air to the pharynx
Reason : pharynx produces sound
The diagram shows the ribs and some of the muscles used in breathing.
The process of conversion of glucose
Assertion : In woody plants
Reason : Lenticels are specialised cells
An experiment is set up as shown. flasks 1 and 2 contain lime water. Air is pumped through the flasks.
Each and every respiratory organ is structurally specialised in its function. Justify with examples
Diffusion pressure cannot deliver oxygen all over the body in bigger animals. Comment on this statement.
What is the function of guard cells?
Assertion : Exchange of oxygen and carbon
Reason : oxygen diffuses from alveoli to blood vessels
Describe the process of breathing in human beings.
Assertion : During inhalation, diaphragm flattens
Reason : Due to this, air enters the lungs
Aerobic respiration produces more ATP than anaerobic respiration. Justify this statement
Assertion : Haemoglobin is the respiratory
Reason : It transports oxygen in the human body
Draw a diagram of respiratory system and label the following.
Write the pathway of oxygen travelling from atmosphere into the human body.
While breathing out, point out the changes you think occur in diaphragm and intercoastal muscles.
Assertion : The release of energy in
Reason : Each glucose molecules produces
Why does the air passage not collapse when there is no air in it?
When we breathe out, why does the air passage not collapse
Draw a flawchart to show the breakdown of glucose by various pathways.
Explain the process of breakdown of glucose in a cell
Breathing cycle is an essential process for the exchange of gases. Justify this statement
Name the intermediate and end products of breakdown of glucose in aerobic respiration.
What is the logic behind the heavy breathing as we climb up a mountain?
If a person holds his breath after expiration for about 25 sec, would there be occurrence of any exchange of respiratory gases in ..
What are the different ways in which glucose is oxidised
Explain the three pathways of breakdown of glucose in living organisms
(i) A product is formed in the cytoplasm of our muscles
(ii) Differentiate between fermentation in yeast and aerobic
When air is blown from mouth into a test-tube containing
What is the role of respiratory pigment in respiration? Give one example.
The correct sequence of anaerobic reaction in yeast is
With a schematic diagram, explain the overall process of respiration in animals
During vigorous physical exercise
Tabulate adaptations of terrestrial respiration in human being
Which cell organelle is involved in
What advantage over an aquatic organism does
Which of the following structures is involved in
What are the different ways in which glucose is
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
Which of the following statements are true about respiration?
Distinguish between aquatic and terrestrial respiration
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